Freestyle swimming has been included in every modern Olympics ... Except for after the start and turns, some part of the swimmer's head must come above water during each cycle of a stroke and kick.

But it's hard to know how they actually perform until you get in the water. That's why we put the best swimming headphones to the test, jumping into the pool to ... as your head bobs in and ...

An above-ground pool is the least expensive option for a swimming pool ... some of the same problems as in-ground pools, such as water evaporation and maintenance issues. They typically come ...